Genuine OEM Audi Gearbox Synchronizing Hub, part number 0A2311764A. This precision-engineered component is vital for the smooth and efficient engagement of gears within the manual transmission, matching rotational speeds before meshing. It is located within the gearbox assembly, working in conjunction with synchronizer rings and gears. Weighing approximately 0.32 kg, this hub is manufactured to exact specifications for optimal performance. Using a genuine OEM synchronizing hub guarantees the correct material hardness, tooth profile, and dimensional accuracy, which are essential for reliable gear changes and the longevity of the transmission.